region/test/RegionTests.js

describe('Region', function(){
    var Region = require('../index')

    it('should have correct width', function(){
        var r = Region({
            top: 10,
            left: 20,
            right: 40,
            bottom: 20
        })

        r.getWidth()
            .should
            .equal(20)

    })

    it('should have correct height', function(){
        var r = new Region({
            top: 10,
            left: 20,
            width: 30,
            height: 40
        })

        r.getBottom()
            .should
            .equal(50)
    })

    it('should return correct intersection', function(){
        var r1 = Region({
            top: 10,
            left: 10,
            right: 40,
            bottom: 40
        })

        var r2 = Region({
            top: 20,
            left: 15,
            right: 45,
            bottom: 35
        })

        var intersection = r1.getIntersection(r2)

        intersection.get()
            .should
            .eql({
                top: 20,
                left: 15,
                right: 40,
                bottom: 35
            })
    })
})